
	Trending ▼ ICSE CBSE 10th ISC CBSE 12th CTET GATE UGC NET Vestibulares ResFinder

GCE MAY 2009 : A2 2 Electromagnetism and Nuclear Physics (Irish Medium)

20 pages, 40 questions, 0 questions with responses, 0 total responses,

	gce	+Fave Message
	Profile Timeline Uploads Q & A

Home > gce >

Instantly get Model Answers to questions on this ResPaper. Try now!
NEW ResPaper Exclusive!

Formatting page ...

Uimhir L rionaid 71 Uimhir Iarrth ra ADVANCED General Certificate of Education 2009 Fisic Aonad Meas naithe A2 2 ag meas n Mod l 5: Leictreamaighn adas agus Fisic N icl ach [A2Y21] D ARDAOIN 28 BEALTAINE, MAIDIN AM 1 uair 30 n im ad. TREOIR D IARRTH IR Scr obh d Uimhir L rionaid agus d Uimhir Iarrth ra sna sp sanna chuige sin ag barr an leathanaigh seo. Freagair gach ceann de na c ig cheist. Scr obh do fhreagra sna sp sanna chuige sin sa cheistph ip ar seo. EOLAS D IARRTH IR Is 90 an marc ioml n don ph ip ar seo. Meas n far caighde n na cumars ide scr ofa i gceist 5. L ir onn figi ir idir l ib n ar thaobh na l imhe deise de leathanaigh na marcanna at ag dul do gach ceist n do gach cuid de cheist. Tarraing tear d aird ar an Bhileog Sonra agus Foirml at taobh istigh den cheistph ip ar seo. Tig leat ireamh n leictreonach a s id. Cuireann Ceist 5 le riachtanas mheas n sionoptach na Sonra ochta. Moltar duit tuairim is 45 n im ad a chaitheamh ar cheisteanna 1 4, agus tuairim is 45 n im ad ar cheist 5. Don Scr daitheoir amh in Uimhir Marcanna Ceiste 1 2 3 4 5 Marc Ioml n 4865.03 M bh onn luachanna na dtairiseach fisiceach de dh th ort chun ceist ar bith ar an ph ip ar seo a fhreagairt, t siad le f il ar an Bhileog Sonra agus Foirml . Scr daitheoir Amh in Marcanna Athmharc Freagair gach ceann de na c ig cheist 1 T dh thoilleoir, C1 dar toilleas 2.00 F agus C2 dar toilleas 8.00 F luchtaithe sa d igh gurb 5.76 10 4 J an fuinneamh at st r ilte i ngach ceann de na toilleoir . B onn an fuinneamh seo st r ilte sna toilleoir agus iad gceangal sa chiorcad in F or 1.1 agus lasc S oscailte. 2.00 F C1 S X Y C2 8.00 F F or 1.1 (a) R omh an difr ocht poit insil trasna ar gach ceann de na toilleoir . Cuimhnigh: t an lasc oscailte ag an ch im seo. Difr ocht poit insil trasna ar thoilleoir C1 (2.00 F) = ___________ V Difr ocht poit insil trasna ar thoilleoir C2 (8.00 F) = ___________ V [4] 4865.03 2 [Turn over (b) T lasc S druidte anois. Scr daitheoir Amh in Marcanna Athmharc (i) Faigh an difr ocht poit insil idir na teirmin il X agus Y i ndiaidh don lasc a bheith druidte. Difr ocht poit insil = _________ V [5] (ii) D an cur s os agus tabhair m ni ar an traschur luchta idir na toilleoir i ndiaidh don lasc a bheith druidte. ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ___________________________________________________ [4] 4865.03 3 [Tiontaigh an leathanach 2 (a) (i) Luaigh, i bhfocail, dl Faraday ar ionducht leictreamaighn adach. Scr daitheoir Amh in Marcanna Athmharc _____________________________________________________ _____________________________________________________ ___________________________________________________ [2] (ii) Cuirtear corna pl nach sreinge sa d igh go bhfuil a phl na ingearach le r imse maighn adach. B onn an flosc tr d an chorna tairiseach ar dt s, ach athra onn s le ham t mar a thaisp antar in F or 2.1. Ar na haiseanna b na faoi bhun an ghraif seo, tarraing graf a thaispe nfaidh cad mar a bh onn an f.l.g. (e.m.f.) E sa chorna ag athr le ham t t = 0 go t = tf + 0 tf E + 0 tf [3] F or 2.1 4865.03 4 [Turn over (b) An voltas aschuir E de ghinead ir s.a. simpl , b onn s ag athr le ham t mar a thugtar le Cothrom id 2.1. E = 320 sin (314t) Scr daitheoir Amh in Marcanna Athmharc Cothrom id 2.1 (i) R omh minic ocht an ghinead ra. Minic ocht = ________ Hz [2] (ii) R omh an t- osmh id ama, ina ms, a ghlacfaidh aschur an ghinead ra ir nialas go 160 V i ngach ciogal oibrithe. osmh id ama = ________ ms 4865.03 [3] 5 [Tiontaigh an leathanach 3 (a) (i) Luaigh cad a chialla onn sainlucht an leictreoin. Scr daitheoir Amh in Marcanna Athmharc _____________________________________________________ ___________________________________________________ [1] (ii) Faigh m id sainlucht an leictreoin ceart go dt dh fhigi r bhun sacha agus luaigh a aonad. Sainlucht = ____________ Aonad = ____________ [3] (b) Is f idir sainlucht leictreoin a thomhas tr l as caol leictreon a chur tr d r imse leictreach agus r imse maighn adach at dronuilleach lena ch ile agus le conair na leictreon (.i. r ims cros ilte). L ir onn F or 3.1 l as caol leictreon ag gluaiseacht go hingearach amach phl na an ph ip ir idir dh phl ta miotail a chrutha onn r imse leictreach aonfhoirmeach. Ar F or 3.1, marc il polara ocht na bpl ta seo le r imse leictreach a chruth agus marc il go soil ir le rinn saighde dar lip ad E treo comhfhreagrach an r imse leictrigh. Marc il go soil ir le rinn saighde eile ar F or 3.1 treo r imse mhaighn adaigh chomhfhreagraigh B a bheadh de dh th le sraonadh nialasach an l is leictreon a chruth . [2] F or 3.1 4865.03 6 [Turn over Cuirtear l as comhionann de phosatr in in it an l is leictreon. (Is is posatr n ann c ithn n at comhionann le leictreon, ach a bhfuil lucht deimhneach aige.) Luaigh agus m nigh c acu a bheadh sraonadh nialasach go f ill ag an l as seo do na r ims E agus B at l irithe agat n nach mbeadh. Scr daitheoir Amh in Marcanna Athmharc _________________________________________________________ _______________________________________________________ [1] (c) Gluaiseann l as caol leictreon tr d r igi n mar a bhfuil r imse leictreach agus r imse maighn adach ag feidhmi go hingearach lena ch ile. N shraontar na leictreoin sa l as agus iad ag dul tr d an r igi n seo. Is 1.50 10 3 T, an floscdhl s at ag an r imse maighn adach, agus is 1.78 104 V m 1 neart an r imse leictrigh. R omh treoluas na leictreon sa l as. Treoluas = ____________ m s 1 4865.03 [3] 7 [Tiontaigh an leathanach 4 (a) Is iad -c ithn n , -c ithn n agus -rada ocht na cine lacha coitianta d astuithe radaighn omhacha. Caithfear achoimre a dh anamh ar chuid d n-air onna in T bla 4.1. Anseo th os t m ideanna a d fh adfadh a bheith ar a luas agus a raon in aer, chomh maith lena gcumas ian ch in. Luas/m s 1: 3 108; 2 108; 2 103; 2; Marcanna Athmharc 2 107 Raon/cm: Scr daitheoir Amh in 10 Is f idir an cumas ian ch in a rang mar: seal, me nach n ard. I ndiaidh duit an fhaisn is thuas a mheas, comhl naigh F or 4.1 anseo th os tr d na sonra cu a roghn agus a chur sna sp sanna b na sa t bla. T bla 4.1 Rada ocht Luas/m s 1 Raon/cm Cumas ian ch in -c ithn n -c ithn n -rada ocht [3] (b) T ann sraith de mheathluithe radaighn omhacha i bhfeidhm ar n icl as r iniam 238 U sula sroicheann s staid chobhsa deiridh arb n icl as 92 luaidhe (Pb) . Anseo th os t comharbas na gc ithn n a asta tear agus ag meathl , agus iad liostaithe san ord a dtarla onn siad. alfa, b ite, b ite, alfa, alfa, alfa, alfa, alfa, b ite, b ite, alfa, b ite, b ite, alfa Faigh an uimhir n icl in agus an uimhir pr t in den n icl as cobhsa deiridh Pb. Uimhir n icl in = ____________ Uimhir pr t in = ____________ 4865.03 [2] 8 [Turn over (c) (i) Sainmh nigh an bheicireil, an t-aonad gn omha ochta do shampla radaighn omhach. Scr daitheoir Amh in Marcanna Athmharc _____________________________________________________ ___________________________________________________ [1] (ii) Sainmh nigh an meath-thairiseach de shampla radaighn omhach. _____________________________________________________ _____________________________________________________ ___________________________________________________ [2] (iii) Is 5.0 l an leathr de bhiosmat-210 d ast -c ithn n. Faigh caillteanas c atad nach na gn omha ochta i sampla i ndiaidh 15 huaire an chloig. Caillteanas c atad nach na gn omha ochta = _____ % 4865.03 9 [4] [Tiontaigh an leathanach 5 Ceist tuisceana Cuireann an cheist seo le riachtanas mheas n sionoptach na Sonra ochta. Sa fhreagra agat, t thar ag s il go dt gfaidh t le ch ile agus go gcuirfidh t i bhfeidhm iad, prionsabail agus comhth acsanna r ims eile na fisice, agus go mbainfidh t s id as scileanna na fisice sa ch s ar leith a gcuirtear s os air. Moltar duit tuairim is 45 n im ad a chaitheamh ar an cheist seo. L igh an sliocht go c ramach agus freagair na ceisteanna a leanann. Ba ch ir duit codanna (c)(i) agus (ii) agus (d)(ii) den cheist seo a fhreagairt i bpr s lean nach. Meas n far th ar chaighde n na cumars ide scr ofa. Gn ithe Teirmeacha d fhead in X-ghathanna I bhfead in X-ghathacha, b onn leictreoin mhearghluaiste ag tuairgne il spriocanna 1 miotail le X-ghathanna a th irgeadh. T an pr iseas seo iontach neamh ifeachtach agus athra tear an chuid is m d fhuinneamh na leictreon (tuairim is 99%) ina theas in an id miotail na bhfead n. Deartar na han id le caillteanas teasa a uasmh ad tr mhodhanna difri la. 5 Cuid onn traschur teasa tr sheoladh (i solaid den chuid is m ), tr chomhiompar (gan ach i sreabh in) agus tr rada ocht (tr thonnta leictreamaighn adacha) leis an teas a bhaint ar shi l an id na bhfead n le dam iste teirmeach a chosc le linn oibrithe. Cuirtear dh dhearadh an ide san ireamh anseo, an cine l an ide c naitheach agus an cine l rothlach. 10 Taispe nann F or 5.1 l ar id lip adaithe d fhead n an ide c naitheach tumtha i bhfuarth n ola taobh istigh d imfh l c s la. Fuarth n ola Fead n gloine Imfh l Sprioc tungstain Cat id e conair An id chopair Fol s S ala X-ghathanna F or 5.1 Nuair a bh onn an fead n ar obair, ir onn an sprioc tana tungstain at tu mithe san an id iontach te. Traschuireann s a chuid teasa go gasta go dt an an id ollmh r 4865.03 10 [Turn over chopair a thrascuireann ansin go dt an ola. I ndiaidh a thuilleadh pr iseas de thraschur 15 teasa, ala onn an teas ar deireadh isteach san aer m guaird. Is gn th bhachtach forbairt theirmeach ag an s ala mar a dt ann an an id chopair tr d an ghloine isteach san ola. Is Cothrom id 5.1 a riala onn forbairt theirmeach bhar. Lt = Lo(1 + t) Cothrom id 5.1 an it arb Lt fad r ada ag t C, arb Lo fad an r ada ag 0 C, arb an chomh ifeacht 20 forbartha l n , .i. m ad cod nach an fhaid in aghaidh ard teochta C agus arb t teocht an r ada ina C. Is 1083 C le phointe copair agus cuireann s seo teorainn phraitici il leis an mh id teasa a d fh adfadh carnadh ag an an id. Cuireann s seo teorainn le d ine na X-ghathanna is f idir leis an fhead n an ide ch naitheach a th irgeadh. 25 Is l ar id lip adaithe d fhead n an ide rothlach F or 5.2. Mar gheall ar an dearadh seo, is f idir leis an an id ionchur cumhachta is m agus teochta is airde a sheasamh. An sprioc do na leictreoin le X-ghathanna a th irgeadh, is achar beag ar imeall beibhealta an diosca an ide rothlaigh. T diosca na han ide tungstain ceangailte de r tar m tair ionduchtaithe ar f idir leis rothl faoi luasanna difri la. 30 Fuarth n ola Corna m tair Fead n gloine Imfh l Fol s Cat id R tar e conair Achar sprice Diosca an ide rothlach X-ghathanna F or 5.2 Is tungstan an diosca an ide dar le phointe 3380 C. De r ir mar a rothla onn an diosca, n bh onn gach achar ar an an id nochtaithe do l as tuairgne ilte na leictreon ach ar feadh tamall beag i ngach rothl . Is f idir le gach achar comhleantach ar an an id X-ghathanna a rad nuair a imbhuaileann leictreoin iad, ach fuara onn siad tr rada ocht an chuid is m den am in aon rothl amh in. Is f idir leis an an id me nteochta is airde 35 a sheasamh, mar sin, agus X-ghathanna dar d ine is airde a ghini int ina dhiaidh sin l as leictreon is m fuinneamh. Baineann na modhanna c anna de bhaint ar shi l teasa leis an fhead n seo is a bhaineann leis an chine l ch naitheach, ach is tr rada ocht is m a chailltear teas. Is f idir go mbeidh an an id ar obair go sl n s bh ilte ag teocht is airde n le phointe copair, le f rinne is f idir go sroichfidh an an id teocht at ard 40 go leor lena cur ag breo gan dam iste teirmeach a dh anamh. Is dl rada ochta Stefan (Cothrom id 5.2) a riala onn an caillteanas is m teas n dromchla te rothlach Q = T4 4865.03 11 Cothrom id 5.2 [Tiontaigh an leathanach an it arb Q r ta astaithe an fhuinnimh rada ochta achar aonaid dromchla ina W m 2. Is T teocht an dromchla ina K agus is an tairiseach Stefan, 5.70 10 8 W m 2 K 4. 45 Lena chinnti nach nd anfar dam iste don an id d fhead n X-ghathach mar gheall ar r th amh, s idtear cairteacha r t la. L ir onn na cairteacha seo teorainneacha cu s bh ilteachta le haghaidh oibri an fhead in. Taispe nann cairt r t la sruth fead in ina mA ar a hais ingearach agus am oibrithe fead in ina shoicind ar a hais chothrom nach. Gach cuar ar chairt, l ir onn s teorainn na gcoinn ollacha sl na oibrithe le haghaidh 50 voltas an ide fead in tugtha. 4865.03 12 [Turn over Freagair GACH CEANN de na ceisteanna seo a leanann Scr daitheoir Amh in Marcanna Athmharc (a) Scr obh c pla focal, n abairt ghearr, le m ni a thabhairt ar na focail n na fr sa de r ir mar a s idtear sa sliocht iad. (i) ag tuairgne il (l ne 1) ____________________________________________________ __________________________________________________ [1] (ii) an id/ (l nte 3, 5, 8 & l nte eile) ____________________________________________________ __________________________________________________ [1] (iii) fuarth n ola (l ne 12) ____________________________________________________ __________________________________________________ [1] (iv) s ala (l ne 17) ____________________________________________________ __________________________________________________ [1] (v) le phointe (l nte 22 agus 31) ____________________________________________________ __________________________________________________ [1] (vi) d ine (l nte 24 agus 36) ____________________________________________________ __________________________________________________ [1] (vii) imeall beibhealta (l nte 28 agus 29) ____________________________________________________ __________________________________________________ [1] 4865.03 13 [Tiontaigh an leathanach (viii) ag breo (l ne 41) Scr daitheoir Amh in Marcanna Athmharc ____________________________________________________ __________________________________________________ [1] (b) (i) Buaileann sruth leictreach dar 75.0 mA an an id den fhead n X-gha a thaispe ntar in F or 5.1 ar feadh ama de 1.50 s. D an meastach n ar l on na leictreon seo a ghineann X-ghathanna (l ne 2). ____________________________________________________ ____________________________________________________ ____________________________________________________ L on na leictreon = __________________________________ [4] (ii) Is 11.3 10 4 kg mais na sprice tungstain (l ne 13) agus is 142 J kg 1 K 1a saintoilleadh teirmeach. Leictreoin a bhuaileann an sprioc, luasgh ara odh iad tr dhifr ocht poit insil de 60.0 kV. R omh an t-ard teochta sa sprioc tungstain nuair a chailleann leictreon amh in a fhuinneamh uile go teas. Ard teochta = ________ K [4] (iii) C mh ad imbhualadh leictreoin comhuaineach cos il leo si d in (ii) at de dh th le teocht na sprice a ard de 1.30 K? L on na n-imbhuailt = __________ 4865.03 14 [2] [Turn over (c) T an fead n in F or 5.1 ar obair ar feadh tamaill agus t teocht ard bainte amach ag an sprioc tungstain san an id. T ort a mheas c n d igh ar f idir an teas ag foirceann te na han ide a bhaint ar shi l (l ne 8). Is f idir a r , mar shampla, go rada tear (le tonnta leictreamaighn adacha) cuid den fhuinneamh ar shi l n an id tr d an fhol s go dt gloine an fhead in. T ort F or 5.1 a mheas go c ramach, fach, agus ansin a shainaithint agus a lua c n treo a bhfuil an teas ag sreabhadh in dh sc san fhead n an ide seasta mar a bhfuil pr iseas an tseolta in s id le fuinneamh teasa a thraschur. T ort a shainaithint agus a lua ansin c n treo a bhfuil an teas ag sreabhadh in sc chomhiompair amh in don fhead n. (i) Scr daitheoir Amh in Marcanna Athmharc Gn ithe seolta Sainaithin agus luaigh an treo a bhfuil an teas ag sreabhadh in dh sc seolta don fhead n. 1. __________________________________________________ ____________________________________________________ 2. __________________________________________________ __________________________________________________ [4] (ii) Gn ithe comhiompair Sainaithin agus luaigh an treo a bhfuil an teas ag sreabhadh in sc comhiompair amh in don fhead n. ____________________________________________________ __________________________________________________ [2] 4865.03 15 [Tiontaigh an leathanach (d) (i) In F or 5.1, ag 0 C, is 48.5 mm trastomhas na han ide copair ag an fhoirceann mar a bhfuil s ala leis an ghloine. Is 48.5 mm chomh maith trastomhas inmhe nach na gloine leis an s ala ag 0 C. Tarla onn forbairt dhifre lach idir an an id chopair agus an ghloine, .i. forbra onn an copar agus an ghloine de mh ideanna difri la le haghaidh athr teochta ar bith. Scr daitheoir Amh in Marcanna Athmharc Is iad 1.71 10 5 C 1 agus 1.63 10 5 C 1 faoi seach comh ifeachta forbartha l n (l nte 20 agus 21) copair agus gloine. Is f idir go mbrisfidh an s ala seo nuair is 4.50 10 3 mm an difr ocht san fhorbairt idir trastomhas an chopair agus trastomhas na gloine. Ag baint s ide as an luach seo agus as Cothrom id 5.1, r omh an teocht ag an s ala nuair a tharla onn an difr ocht seo i m id trastomhais. Teocht = __________ C [4] (ii) De ghn th, b onn an fead n X-ghathach tumtha in ola. Is f idir chomh maith an ola a bhaint ar shi l agus an fead n a oibri in aer. Abair gur s ideadh an fead n in aer nuair a bhris an s ala, scr obh cuntas gearr ar an tionchar a bheadh aige seo ar oibri an fhead in de r ir mar a bh X-ghathanna ngini int aige. ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ __________________________________________________ [4] Caighde n na cumars ide scr ofa 4865.03 [2] 16 [Turn over (e) An id rothlach an fhead in a thaispe ntar in F or 5.2, b onn s ag rothl faoi ardluas agus an fead n ar obair. B onn f inne beo le feice il ina ioml ine thart timpeall imeall beibhealta na han ide. Is 1200 C teocht an fh inne bheo seo. T me ngha rothlaithe de 42.0 mm ag an fh inne agus t s 2.30 mm ar leithead. (i) Scr daitheoir Amh in Marcanna Athmharc R omh achar an fh inne bheo thart timpeall na han ide. Leid: cuir me n-iml ne agus leithead an fh inne san ireamh. Achar = __________ m2 [2] (ii) Agus dl Stefan (Cothrom id 5.2) in s id agat, r omh an teas ioml n a chailltear de dheasca rada ochta achar beo na han ide in 1.50 s. Teas a chailltear __________ J [3] (iii) Laghda tear de 10% dearbhtheocht an fh inne bheo. R omh an laghd c atad nach comhfhreagrach i r ta an astaithe n fh inne bheo don laghd teochta seo. Laghd c atad nach = __________ % 4865.03 17 [2] [Tiontaigh an leathanach (f) Anois t ort cuair ar chairt r t la d fhead n X-ghathach (l nte 46 51) a mheas. Ar F or 5.3, t cuar a thaispe nann teorainn na gcoinn ollacha sl na oibrithe sa d igh nach r th ifear an an id i bhfead n tugtha le haghaidh voltas oibrithe an ide de 60 kV. (i) Scr daitheoir Amh in Marcanna Athmharc Ar F or 5.3, ag tos ag pointe P (150 mA), sceitse il cuar eile le haghaidh voltas oibrithe an ide de 40 kV. Lip adaigh an cuar at tarraingthe agat 40 kV . [2] (ii) Ar F or 5.3, an cuar at tarraingthe agat agus an cuar tugtha gcur san ireamh, sc thaigh an t-achar a l ir onn an r igi n oibrithe sl n don an id le haghaidh voltas oibrithe, 40 kV agus 60 kV araon. Sruth fead in/mA 150 P 100 50 60 kV 0 0.1 1.0 Am oibrithe fead in/s 10 20 [2] F or 5.3 SEO DEIREADH AN SCR DPH IP IR 4865.03 18 [Turn over 937-052-1 [Turn over

Formatting page ...

Additional Info : Gce Physics May 2009 Assessment Unit A2 2, Module 5: Electromagnetism and Nuclear Physics (Irish Medium)
Tags : General Certificate of Education, A Level and AS Level, uk, council for the curriculum examinations and assessment, gce exam papers, gce a level and as level exam papers , gce past questions and answer, gce past question papers, ccea gce past papers, gce ccea past papers

gce chat

Horizontal lines at:
Guest Horizontal lines at:
AutoRM Data:
Box geometries: